[Http] Understand what an HTTP Request is

Let's look at several HTTP requests to learn the basic structure of these messages, and how the various elements communicate important information from the client/browser to the API service. 
Follow the instructions at HTTPie to download the CLI tool and follow along.

Install: Link

RUN:

Get all the Request header / body and Response header and body:

http get https://api.github.com/users/zhentian-wan

Get only request printed:

http get --print=HB https://api.github.com/users/zhentian-wan

See the options: Link